///**
// * IK 中文分词  版本 5.0
// * IK Analyzer release 5.0
// *
// * Licensed to the Apache Software Foundation (ASF) under one or more
// * contributor license agreements.  See the NOTICE file distributed with
// * this work for additional information regarding copyright ownership.
// * The ASF licenses this file to You under the Apache License, Version 2.0
// * (the "License"); you may not use this file except in compliance with
// * the License.  You may obtain a copy of the License at
// *
// *     http://www.apache.org/licenses/LICENSE-2.0
// *
// * Unless required by applicable law or agreed to in writing, software
// * distributed under the License is distributed on an "AS IS" BASIS,
// * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// * See the License for the specific language governing permissions and
// * limitations under the License.
// *
// * 源代码由林良益(linliangyi2005@gmail.com)提供
// * 版权声明 2012，乌龙茶工作室
// * provided by Linliangyi and copyright 2012 by Oolong studio
// *
//
// *
// */
//package org.wltea.analyzer.lucene;
//
//import java.io.IOException;
//import java.io.Reader;
//
//import org.apache.lucene.analysis.Tokenizer;
//import org.apache.lucene.analysis.tokenattributes.CharTermAttribute;
//import org.apache.lucene.analysis.tokenattributes.OffsetAttribute;
//
//import org.wltea.analyzer.core.IKSegmenter;
//import org.wltea.analyzer.core.Lexeme;
//
///**
// * IK分词器 Lucene Tokenizer适配器类
// * 兼容Lucene 3.1以上版本
// */
//public class IKTokenizer extends Tokenizer {
//
//	//IK分词器实现
//	private IKSegmenter _IKImplement;
//	//词元文本属性
//	private CharTermAttribute termAtt;
//	//词元位移属性
//	private OffsetAttribute offsetAtt;
//	//记录最后一个词元的结束位置
//	private int finalOffset;
//
//	/**
//	 * Lucene 3.5 Tokenizer适配器类构造函数
//	 * @param in
//	 * @param useSmart
//	 */
//	public IKTokenizer(Reader in , boolean useSmart){
//	    super(in);
//	    offsetAtt = addAttribute(OffsetAttribute.class);
//	    termAtt = addAttribute(CharTermAttribute.class);
//		_IKImplement = new IKSegmenter(in , useSmart);
//	}
//
//	/* (non-Javadoc)
//	 * @see org.apache.lucene.analysis.TokenStream#incrementToken()
//	 */
//	@Override
//	public boolean incrementToken() throws IOException {
//		//清除所有的词元属性
//		clearAttributes();
//		Lexeme nextLexeme = _IKImplement.next();
//		if(nextLexeme != null){
//			//将Lexeme转成Attributes
//			//设置词元文本
//			termAtt.append(nextLexeme.getLexemeText());
//			//设置词元长度
//			termAtt.setLength(nextLexeme.getLength());
//			//设置词元位移
//			offsetAtt.setOffset(nextLexeme.getBeginPosition(), nextLexeme.getEndPosition());
//			//记录分词的最后位置
//			finalOffset = nextLexeme.getEndPosition();
//			//返会true告知还有下个词元
//			return true;
//		}
//		//返会false告知词元输出完毕
//		return false;
//	}
//
//
//	/*
//	 * (non-Javadoc)
//	 * @see org.apache.lucene.analysis.Tokenizer#reset(java.io.Reader)
//	 */
//	public void reset(Reader input) throws IOException {
//		super.reset(input);
//		_IKImplement.reset(input);
//	}
//
//	@Override
//	public final void end() {
//	    // set final offset
//		offsetAtt.setOffset(finalOffset, finalOffset);
//	}
//}
